Device for removably fixing and driving a tool in the head of a handpiece
OwnerJean-Marie Badozinventor
Life of this patent
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Abstract
An apparatus for removably fixing a tool to the head of a handpiece including a neck having the head at one end of the neck and a handle at an opposing end of the neck, and interior portions receiving a drive shaft for rotating the tool. The apparatus includes a bore formed in the head of the handpiece, for receiving the tool in the bore of the head, and a toothless friction drive coupled with an end of the drive shaft adjacent to the bore of the head. The friction drive engages shank portions of the tool while received in the bore of the head. The tool is retained in the bore by frictional contact between the shank of the tool and the friction drive coupled with the drive shaft.
Claims11
An apparatus for removably fixing a tool to a head of a handpiece, wherein the handpiece includes a neck having the head at one end of the neck and a handle at an opposing end of the neck, wherein interior portions of the neck, the handle and the head each receive a drive shaft for rotating the tool, and wherein the apparatus comprises:
- a bore formed in the head of the handpiece, for receiving the tool in the bore of the head;
- and
- a toothless friction drive coupled with an end of the drive shaft adjacent to the bore of the head, for engaging shank portions of the tool while received in the bore of the head, and for retaining the tool in the bore by frictional contact between the shank of the tool and the friction drive coupled with the drive shaft.
Dependencies are inferred from the claim text.